在Swift的弹出datePickerView中添加一个Done按钮？ [英] Add a Done button within a pop-up datePickerView in Swift?

问题描述

我想在Swift中弹出一个datePickerView中添加一个Done按钮。

I want to add a Done button within a popped up datePickerView in Swift.

这是代码：

@IBOutlet var datePicker: UITextField!

@IBAction func dateTextInputPressed(sender: UITextField) {

    var datePickerView = UIDatePicker()
    datePickerView.datePickerMode = UIDatePickerMode.Date

    sender.inputView = datePickerView
    datePickerView.addTarget(self, action: Selector("handleDatePicker:"), forControlEvents: UIControlEvents.ValueChanged)
}

func handleDatePicker(sender: UIDatePicker) {
    var dateFormatter = NSDateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd"
    datePicker.text = dateFormatter.stringFromDate(sender.date)
}

我可以使用此代码成功弹出datePickerView。

I can use this code to pop up a datePickerView successfully.

但是在我选择了日期之后，它没有完成按钮来解除它。

But after I've selected the date, it does not have a "Done" button to dismiss it.

那么如何在其中添加完成按钮？

So how can I add the Done button into it?

谢谢！

解决方案

我做了这个扩展来关闭选择器。 Swift 2

I made this extension to close the picker. Swift 2

extension UIToolbar {

 func ToolbarPiker(mySelect : Selector) -> UIToolbar {

    let toolBar = UIToolbar()

    toolBar.barStyle = UIBarStyle.Default
    toolBar.translucent = true
    toolBar.tintColor = UIColor.blackColor()
    toolBar.sizeToFit()

    let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Plain, target: self, action: mySelect)
    let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)

    toolBar.setItems([ spaceButton, doneButton], animated: false)
    toolBar.userInteractionEnabled = true

    return toolBar
}

}

Swift 3 - 4

extension UIToolbar {

func ToolbarPiker(mySelect : Selector) -> UIToolbar {

    let toolBar = UIToolbar()

    toolBar.barStyle = UIBarStyle.default
    toolBar.isTranslucent = true
    toolBar.tintColor = UIColor.black
    toolBar.sizeToFit()

    let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.plain, target: self, action: mySelect)
    let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil)

    toolBar.setItems([ spaceButton, doneButton], animated: false)
    toolBar.isUserInteractionEnabled = true

    return toolBar
}

}

你只需在你的viewController中使用它：

And you can use it simply in your viewController:

  override func viewDidLoad() {
    super.viewDidLoad()

 //SWIFT2
 /*
let toolBar = UIToolbar().ToolbarPiker(#selector(MyViewController.dismissPicker))

 */
// Swift3 - 4
    let toolBar = UIToolbar().ToolbarPiker(mySelect: #selector(MyViewController.dismissPicker))

    myTextField.inputAccessoryView = toolBar


}

 // Swift 2 - 3
 func dismissPicker() { 

    view.endEditing(true)

}

 // Swift 4
 @objc func dismissPicker() { 

    view.endEditing(true)

}

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